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Debian LTS Advisory DLA-3680-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                         Tobias Frost
December 03, 2023                             https://wiki.debian.org/LTS
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Package        : opendkim
Version        : 2.11.0~alpha-12+deb10u1
CVE ID         : CVE-2022-48521
Debian Bug     : 1041107

An issue (CVE-2022-48521) was discovered in OpenDKIM through 2.10.3, and
2.11.x through 2.11.0-Beta2. It fails to keep track of ordinal numbers
when removing fake Authentication-Results header fields, which allows a
remote attacker to craft an e-mail message with a fake sender address
such that programs that rely on Authentication-Results from OpenDKIM
will treat the message as having a valid DKIM signature when in fact it
has none.

For Debian 10 buster, this problem has been fixed in version
2.11.0~alpha-12+deb10u1.

We recommend that you upgrade your opendkim packages.

For the detailed security status of opendkim please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/opendkim

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS